Fushi has spent two seasons learning that immortality means watching everyone die, and Season 2 is him finally breaking under that weight. The show doesn't pretend he can be saved by a new arc or a redemption quest, it just puts him in front of people who refuse to let him disappear, and watches what happens when connection becomes harder than solitude. Bon's story especially lands because it asks what it means to matter to someone who has already seen a thousand someones turn to dust.
Fushi, an immortal being haunted by centuries of loss, retreats to an island to escape the Nokkers that hunt him. But the creatures refuse to follow. Instead, they target the villages and towns beyond his reach, systematically destroying settlements to draw him back into the world. When a militia called the Guardians arrives at his door with news of the carnage, Fushi faces an impossible choice: remain isolated and watch humanity suffer, or rejoin a conflict that has cost him everything he's ever loved. Reluctantly stepping back into the fight, Fushi travels with this band of warriors to confront the Nokkers where they strike. Along the way, he reconnects with familiar faces and meets new companions forged in tragedy. Yet each battle only deepens the cycle of grief. As the body count rises and the weight of responsibility crushes down on him, Fushi grapples with a question that defines his curse: can an immortal being ever truly save anyone, or does his very presence doom those around him?